Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 441)

Section 8
Communication Interface
8-8
Figure 8.8 shows the cable connection for the RS-422 interface that uses a
hardware handshake.
Figure 8.8
RS-422 Cable Wiring with Hardware Handshake
Receiver
Driver
CNC
Hardware
Handshake
Peripheral
Signal
Common
Signal
Common
FG
SD A
SD B
RD A
RD B
RS A
RS B
CS A
CS B
DM A
DM B
TR A
TR B
SG 1
2
3
4
12
6
13
8
14
7
5
FG
SD A
SD B
RD A
RD B
RS A
RS B
CS A
CS B
DM A
DM B
TR A
TR B
SG
11352-I
9
10
11
Figure 8.9 shows the cable connection for the RS-422 interface without a
hardware handshake.
Figure 8.9
RS-422 Cable Wiring without Hardware Handshake
FG
SD A
SD B
RD A
RD B
RS A
RS B
CS A
CS B
DM A
DM B
TR A
TR B
SG 1
2
3
10
4
11
12
6
13
8
14
7
9
5
FG
SD A
SD B
RD A
RD B
RS A
RS B
CS A
CS B
DM A
DM B
TR A
TR B
SG
Receiver
Driver
CNC Peripheral
Signal
Common
Signal
Common
No Hardware
Handshake
11353-I
8.6
Connection of Peripherals